Word origin · etymology
Descriptive English scholarly label.
Round refers to the recurring combined cycle of the Haab and sacred count; it is an English explanatory name for their interlocking recurrence.
How we know · epistemology
Combined-cycle arithmetic
The two counts realign after their least common multiple of 18,980 days. A Calendar Round label repeats, so it cannot uniquely identify a historical date without additional chronological information.
Connected concepts
Mentioned in 1 other entry
These links connect subjects and terminology. They do not establish a shared historical origin.
Sources & provenance
Use the citations beside each section to distinguish a calculation convention, a historical teaching and an editorial example.